ES383383A1 - Perfeccionamientos en los receptores diferenciales. - Google Patents

Perfeccionamientos en los receptores diferenciales.

Info

Publication number
ES383383A1
ES383383A1 ES383383A ES383383A ES383383A1 ES 383383 A1 ES383383 A1 ES 383383A1 ES 383383 A ES383383 A ES 383383A ES 383383 A ES383383 A ES 383383A ES 383383 A1 ES383383 A1 ES 383383A1
Authority
ES
Spain
Prior art keywords
photo
shadow board
cells
deadband
receiver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES383383A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ivacan Inc
Original Assignee
Ivacan Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ivacan Inc filed Critical Ivacan Inc
Publication of ES383383A1 publication Critical patent/ES383383A1/es
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/004—Devices for guiding or controlling the machines along a predetermined path
    • E01C19/006—Devices for guiding or controlling the machines along a predetermined path by laser or ultrasound
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/16—Guiding or measuring means, e.g. for alignment, canting, stepwise propagation

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
ES383383A 1969-09-05 1970-09-04 Perfeccionamientos en los receptores diferenciales. Expired ES383383A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85559169A 1969-09-05 1969-09-05

Publications (1)

Publication Number Publication Date
ES383383A1 true ES383383A1 (es) 1973-01-16

Family

ID=25321637

Family Applications (1)

Application Number Title Priority Date Filing Date
ES383383A Expired ES383383A1 (es) 1969-09-05 1970-09-04 Perfeccionamientos en los receptores diferenciales.

Country Status (11)

Country Link
US (1) US3675233A (es)
JP (1) JPS511138B1 (es)
AT (1) AT317964B (es)
CA (1) CA950989A (es)
CH (1) CH519056A (es)
CS (1) CS189568B2 (es)
DE (1) DE2043580C3 (es)
ES (1) ES383383A1 (es)
FR (1) FR2060993A5 (es)
GB (1) GB1322785A (es)
ZA (1) ZA705907B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775618A (en) * 1972-08-09 1973-11-27 Cannon Inc Method and apparatus for checking and/or correcting railway tracks
CH609149A5 (es) * 1975-10-23 1979-02-15 Heidenhain Gmbh Dr Johannes
CH643618A5 (fr) * 1981-09-25 1984-06-15 Sig Schweiz Industrieges Machine de chantier ferroviaire.
CH643619A5 (fr) * 1981-09-25 1984-06-15 Sig Schweiz Industrieges Machine de chantier ferroviaire.
JPS5794812U (es) * 1981-10-29 1982-06-11
US5930904A (en) * 1997-06-17 1999-08-03 Mualem; Charles Catenary system measurement apparatus and method
US20060032063A1 (en) * 2004-08-16 2006-02-16 Fabrication Technology Associates, Inc., Also Known As Fab Tech Method and system for controlling railroad surfacing
AU2014293102B2 (en) 2013-07-24 2020-01-23 Hitachi Rail Sts Usa, Inc. Point detection calibration before switch machine failure
CA2892885C (en) 2015-02-20 2020-07-28 Tetra Tech, Inc. 3d track assessment system and method
US10407835B2 (en) * 2015-07-24 2019-09-10 Focus Point Solutions Projector for track alignment reference systems
US11377130B2 (en) 2018-06-01 2022-07-05 Tetra Tech, Inc. Autonomous track assessment system
US10807623B2 (en) 2018-06-01 2020-10-20 Tetra Tech, Inc. Apparatus and method for gathering data from sensors oriented at an oblique angle relative to a railway track

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA737154A (en) * 1966-06-28 Canada Iron Foundries Limited Means for continually and simultaneously surveying and aligning railroad track
US3218623A (en) * 1961-04-19 1965-11-16 Gen Precision Inc 3 plate proximity scorer
US3129335A (en) * 1961-06-30 1964-04-14 Stewart John Kenneth Photosensitive railroad surveying system
US3144834A (en) * 1961-06-30 1964-08-18 Stewart John Kenneth Means for determining roadbed level and super elevation
US3207904A (en) * 1962-04-09 1965-09-21 Western Electric Co Electro-optical article positioning system
US3270690A (en) * 1962-06-04 1966-09-06 Jackson Vibrators Railway track grading apparatus
CH467386A (de) * 1962-10-15 1969-01-15 Canron Ltd Auf einem Gleis fahrbare Vorrichtung zum Ausrichten des befahrenen Gleises
US3381626A (en) * 1966-03-25 1968-05-07 Jackson Vibrators Track working assembly and control system
US3444384A (en) * 1966-11-07 1969-05-13 Geza E Horeczky Motion selector using ratio of responses of two photoelectric cells
US3521066A (en) * 1969-02-13 1970-07-21 Fairmont Railway Motors Inc Railroad track alignment indicating system employing modulated infrared techniques

Also Published As

Publication number Publication date
JPS511138B1 (es) 1976-01-14
US3675233A (en) 1972-07-04
ZA705907B (en) 1971-04-28
DE2043580B2 (de) 1981-03-26
CA950989A (en) 1974-07-09
FR2060993A5 (es) 1971-06-18
GB1322785A (en) 1973-07-11
CS189568B2 (en) 1979-04-30
DE2043580C3 (de) 1981-12-10
AT317964B (de) 1974-09-25
CH519056A (de) 1972-02-15
DE2043580A1 (de) 1971-04-01

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